<div class="csl-bib-body">
<div class="csl-entry">Robisson, A. (2022, July 4). <i>Bound Rubber Interphase in Rubber Reinforced with Carbon Black: Effect of Temperature</i> [Conference Presentation]. 15th International Conference on Advanced Computational Engineering and Experimenting (ACEX2022), Florence, Italy. http://hdl.handle.net/20.500.12708/192530</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/192530
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dc.description
Bound Rubber Interphase in Rubber Reinforced with Carbon Black: Effect of Temperature
Elastomers, composed of polymeric chains above their glass transition temperature and crosslinked, owe their elasticity to an entropic effect and their stiffness increases with temperature. The addition of carbon black, critical for industrial applications, generates an increase in elastic modulus (measured at small strain amplitude) by a at least an order of magnitude. Nevertheless, upon increasing temperature, the modulus drops significantly, with a larger drop at higher carbon black contents.
I discuss here the role of the elastomer adsorbed on the carbon black surfaces, often referred to as “bound rubber”, and show direct visualization and measurement of this interphase via atomic force microscopy (AFM). In our hydrogenated nitrile butadiene rubber (HNBR) filled with CB (N330), the Young’s elastic modulus of the interphase was estimated to be 53 MPa at room temperature, more than 10 times higher than that of the rubber matrix (4 MPa), with a thickness of ca. 20 nm, that dropped by ca. 10 nm when temperature was increased to 180 C. We concluded that the decrease in the interphase content with temperature can explain the drop in macroscopic small strain elastic modulus. Finally, I argue that an elastomer filled with nanofillers such as carbon black may be understood as a random three-dimensional cellular solids where bending arms are made of carbon black clusters coated with bound rubber, and where the matrix is the free rubber.
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dc.language.iso
en
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dc.subject
rubber
en
dc.subject
elastomer
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dc.subject
carbon black
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dc.subject
interphase
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dc.title
Bound Rubber Interphase in Rubber Reinforced with Carbon Black: Effect of Temperature
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Conference Presentation
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tuw.publication.invited
invited
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
M8
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Structure-Property Relationsship
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tuw.researchTopic.value
50
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tuw.researchTopic.value
50
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tuw.publication.orgunit
E207-01 - Forschungsbereich Baustofflehre und Werkstofftechnologie
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tuw.event.name
15th International Conference on Advanced Computational Engineering and Experimenting (ACEX2022)
en
tuw.event.startdate
04-07-2022
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tuw.event.enddate
07-07-2022
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tuw.event.online
Hybrid
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tuw.event.type
Event for scientific audience
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tuw.event.place
Florence
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tuw.event.country
IT
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tuw.event.institution
Esslingen University of Applied Sciences, Engineering Otto von Guericke University, Universität der Bundeswehr München (Germany)
